alleryদুটি ট্রেন সমান্তরাল ট্র্যাকে 60 km/h এবং 40 km/h গতিবেগে পরস্পরের দিকে এগিয়ে আসছে। তারা কত দ্রুত ব্যবধান কমিয়ে আনে?
A24 km/h
B50 km/h
C100 km/h
D20 km/h
Answer & Solution
Correct answer: C. 100 km/h
বিপরীত দিকে অগ্রসর হওয়ায় তাদের গতিবেগ যোগ হয়, যা দেয় 100 km/h।
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